Add setuptools to install_requires

[Stoops-ML]

This allows for passing the CI quality check

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 99.22%. Comparing base (feb7f0a) to head (180ef51).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #116 +/- ## ======================================= Coverage 99.22% 99.22% ======================================= Files 12 12 Lines 773 773 ======================================= Hits 767 767 Misses 6 6 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[Stoops-ML]

Seems like the problem was the CI quality check using the python:3 docker image, which I've now swapped out for python:3.9.

I'll submit an additional PR to add CI checks on pythons 3.10, 3.11 and 3.12.

[astrojuanlu]

Thank you @Stoops-ML !